Loading and unloading device.



M. J. GOGARTY. y LOADING AND UNLOADING DEVICE.

APPLIO'ATION FILED APR.27, 1912.

Patented Jan.20,1914.

3 SHEETS-SHEET 2.

M. LGOGA'RTY. LOADING AND UNLADING DEVICE.

APPLICATION FILED APR. 27, 1912.

- Patented Jan.2o,19'14 a sums-SHEET a.

sTATnsf '-15ATNT` MICHAEL J'. GO-GA'BTY, 40F BROOKLYN, Nm

Loamiire AND UNLoAnING DnvIcE.

Specification of'Lettei-s Patent.

Animation medium-27,191.2. serial No. 693,543.

To all lwhom, 'it may concern.' Be it known that I, MICHAEL J. fooan'rr, acitizen of the United States, reslding at Brooklymin the county of Kings and Stateof New York, have-invented new and useful Improvements in Loading and Unloadmg Devices, of'which the following is a speci- Y boom structure with its weighted bucket.

cation. p

This invention relates to loading and unloading devices and refers more particularly to that type which are adapted to pick up a load from the ground, transport or convey the same to any desired point, and unload the 4same at the level at which the load Was received or at an elevated point.

A further object of the invention is the provision of means for elevating the boom bodily, whereby the weight of the loaded bucket and the boom may be removed from the supporting wheels. and placed on the vehicle,fs`o that the boom may be swung laterally without friction for dumping the load to one side ofthe vehicle and 'so as to steady the. vehicle and prevent the same from lateral tilting.

A further object of the invention islthe' provision of means for raising the boom and thereon, so 'that theboom may be readily turned without friction for dumping the contents of the bucket to one side of the vehicle and for automatically unlocking the boom so thatf it may be turned as desired.

Still another objectvof the invention is the provision of simple and efficient means for automatically throwing into operative position a support or strut which will remove thewei ht of the'tboom and the'weighted bucket om its pivotal connection immediately uponthe initial movementr of the bucket toward an elevated position upon the boom.

A sau futher and the moet important' object of the inventionis to construct the boom and the bucket in such manner that the bucket may'be `carried throughout its length on the boom with its bottom in a level position or with the bucket tilted rearwardly "in order-:that the device may be accommodated to theloading and unloading of different materials which vary in consistency from solids to'. plastic materials.

Still another object of the invention is the provision of means for automatically tilting the bucket as thev same makes its initial movement upon the boom and for automatically closing a door on the bucket which serves to retain `material therein.

A. further objectofthe invention will appear .as the following. vspecific description read in .connection with the accompanying drawings, :which .form a part of this inven elevation showing the switch controlling lever. Fig. 9 is a side elevationV of a modified type of bucket with the door in open position. Fig. 10 is a similar view showing the door in closed position. Fig. 11 a detail elevation showing the method of adjusting the tilting lever used in the structure illusposition. Fig. 4 is a detail- Patented g13.11.20.1914..

trated in Figs. 9 and 10. Fig. 12 is a detail A vsectional view showing the method of adjusting the boom legs to accommodate different size buckets; and Fig. 13 is a side elevation of the structure. Fig. .14 is a detail inside elevation showing a modified form of tilting track and tilting-track lock. l In carrying out the present invention I preferablyprovide a truck platform 1 of any suitable -character which is supported upon wheels 2 preferably so. constructed that they may be conveniently turned'in any suitable manner so as to steer the vehicle. Mounted upon the forward end of the truck and depending therefrom is a suitable bracket 3 and a similar or corresponding bracket 4 is extended forwardl in the plane ofthe platform 1, both brac ets centrally apertured in vertical a'linement so as-to receive the pivoting post 5 of the boom. This boom as has been illustrated in Figs. 1 to 3, is constructed of separated legs 6 joined together at their outer ends by a rod 7 which carries a pulley 8 for the bucket operating cable or rope 9. The inner end ofthe boom has secured thereto converging brace memloo bers 10 connected together by an upright 11 which extends between the outer ends at the apex of the convergence. These converging brace members hsve'-thepost 5 secured di-A i rectlyvth'ereto and in such manner that it is rotatably and vertically movable in the brackets 3 and 4. The boom audits associated parts are'normally sup orted upon wheels 12 secured to the sides o the leg 6 at the-juncture thereof with the brace members l and bycaster wheel 13 secured to the apex'v of the lower brace members 10.

- rllhe boom is, under 4normal circumstances,

locked in alinement with vthe vehicle by a .v yoke-shaped lever 14 pivoted'upon the platforml as' shown at l5, .and providedwith an vangular rear end 16 for a urpose to be hereinafterv described.'` The of the lever are provided with pins l? vwhich l are engaged in apertures formedin suitable plates 18 extended between the brace'inembers 10y and a rigid strut-19 extending between the legs of. the" boom. Also pivoted upon the platform as-shown at 20, is an operating lever 21 having a yoke end 22 pivotally connected with a4 collar *'23 freely.

. mounted upon the post. .5. J'lhe collar? 23 v is arranged between `colqlars`24and 25 which are keyed to the post and carry suitable ball bearings as will be readily understood. The rear end of the lever 21 is positioned between the 'legs ofa bifurcated bracket .26 in which is pivoted a cam lever '27 adapted to operate the lever 21 so as to elevate the post there- ',by, carrying with it thev boom and its associated mechanism` and lifting the Wheels 12 and 13 0R the ground, as shown in Fig.

3. Simultaneously with the depression of the rear end 'of the llever 21 by the cam lever 27, this lever, 21 will engage the. angular upt-urned end 16 .of the lever 14 to press the saine and raise the pins out of the apertures in the plates 18 so as to unlock the boomand permit. the same to be turned to either side.. In order to l turn-theboom in the brackets 3 and 4 thereis journaledinj bearings 28 mounted upon the platform 1, a shaft .29 vcarrying drums 30fand 31 anda hand wheel 32. -Wound around the'` drums '4 30 land-31 in opplosite directions, areturn- .ing cables-33 w 4.the wheel 32 is rotated in one'direction the boom will be turned uponits' pivotal point,

,asdesired 'Thereversal' ofthe wheel will,.. of course, bring the boom back. t normalposition.

The boom p `gether at 36 and with theinnervsection 35 connectedl to the upper brace members 10- by horizontal track sections 37,. the purpose *adapted to receive a `of which will be hereinafter described.' The carries al bracket 38 olt 39 which extends through theS same -and en ages an arcuate adjusting arm '40"carried y the outer section 34, this arm being provided with a plusection 35 of' each lei rality of apertures 41 as shown, so as to adorward ends ieh are connected to op- Y posite sidesof the braces 10 sothat when l legs 6'are :each constructed inv. separate' sections- 34 and 35 hinged toaoeaoea The, bucket indicated 'de 4e is provided with a transverse rod 49 extending across.

its open front and provided with rollers 50 which travel in the vtrack on opposite legs.

ofthe boom. lllhe rear closed end of the bucket has secured thereto bearings 51 in which is journaled a shaft 52 having rightangular crank ends 53 which project beyondthe sides of the bucket and are provided` with-rollers 5'4also adapted-totravel inthe tracks'on opposite legs' of the boom. Suitable cleats 55 secured to the rear of` the bucket, are provided to slidably receive' locking bolts 56 which engage the'crank end of the shaft 52 and lock the'same in either raised or lowered position as shown in Fig. 6L When these crank Vends bare lowered as shown in fiill lines in Fig. 6, the bucket will travel up the tracksv with its bottom in horizont-alposition as shown and when the crankends 53 are in raised position as shown in dot-ted lines in Fig. 6 the bucket will travel'over thetracks in an inclined position vas shown in Fig..5. In order to throw the `bucket to horizontal position when-the sol bucket is returned to loading position, I provide a switch'ton the intersection o each ofthe track sections 4,2 and 37 and Yis controlled by a lever 59von the outside ofthe boom legs. This lever carriesa bolt in its free end which is adapted e 58 which is pivoted at to engage. in apertures 60 formed in the sections 35. The switch is thrown downwardly 'as shown in Fig. 5 when the ends 53 of the shaft 52 are elevated as shown in Fig. 6 in dotted lines, .so that .the rollers 54 will be deflected onto the track sections 37 and the rear end of theV bucket elevated so as to bring its bottomin horizontal position, as shown in Figs. 1 and 3. 'The upper end'of the. v'bucket is providedf'witha cross bar 61 to n which the end ofthe cable 9 isconnected.

This ca blepasses from this connection with the cross bar 61 under the pulley 8 and-over a pulley 62 swiveled'upon the to of the post 5 and to an ordinaryk winch not shown) which, as will be readily understood, is provided fOr raising andlowlng the bucket on the tracks. f

'the brackets 3 and 4 when the bucket is elevated, l there is pivoted to each section 35 s. .ein order to support vthe boom and remove i -the strain from lts pivotal connection with of the boom a yoke-shaped member 63 adapted to be held in inoperative .position by the ends of the b ar 61 contacting with the same when the bucket is in loading position as shown in Fig. 1. As the bucket is movedforwardly on the tracks the rear end of the yoke member 63 willbe released and the.

forward or heavy end of said yoke memberv will drop by gravity into engagement with the ground. A suitable shoulder 64v is formed on eachleg of the yoke member and from' the permit the vehicle to be moved forwardly to pick up another load.l

In. the modification illustrated in Figs. .9, 10 and 1-1 the'bucket48 has secured to opposite sidesthereof separated rack bars 65 between which. are adjustably mounted theJ bearing blocks .66. ,These bearing blocks carry stub shafts 67 upon which are Vpivoted v suitable levers 68 carrying rollers 69. at one end-thereof to enga e the tracksupon the opposite legs of the oom.l The ends of the levers opposite the lower ends are connected together in any suitable 'manner and have.

. secured'thereto one end of the cable 9 so -that immediately the tension is applied to the cable, .the levers will be turned upon `-their stub shaft 67 and the forward portion of the body elevated as indicated in Fig. 10. Inv this instance, the rear rollers'of the bucket are indicated at 70 and haveno relative movement .with'relation to the bottom ofthe bucket. It will, Aof course, be understood that the rack bars 65v may be dispensed with and the stub-shafts secured divrectly tothe sides of the' casing. -In thismodification it will also be seen that I have p ivoted to the forwardend of the bucket a combined scoop blade and door 71 which isconnected to the opposite end of theilevers' 68 by links 72 so that when the levers 68 is only provided 'with the stationary scoop. blade and is tilted `asbefore described.

are operated the combined scoop blade and door will be thrown to closed position, thus makin it'possible :for the bucket to pick up and ho d'more material than where the same While'it is understood that these machines may be used for'loading and unloading different materials Which as has vbefore been stated 'may be of the consistency of solids or of plastic orsemi-plastic materials, it may be herestated that in `using the devices for loading carts -or other vehicles with snow andsuch materials from the street, it will be necessary to use a comparatively wide bucket. By changing the size of the bucket the same identical machine may be used for loading, unloading and transporting sand,

' pu ey shown inthe drawings the post 5 has cement or like material,- but in order to do this it is necessary to change the width between the separate legs of the boom. For

this purpose I 'have devised the modied form of structurev illustrated in Figs. 12

` and 13 whereinthe brace members 10, 1.1 and 19 have secured thereto suitable lugs 73 in which a. shaft 74 is-secured. The sections ..35 are slidably 'mounted upon this shaft toward and away from each other and are held in adjusted position by'means of the collars 75 which arekeyedto the shaft byv the set screws 76. The brace members have also' secured thereto lugs 77 in which a shaft 78fis secured and adjustably mounted upon this shaft are the track sections 37 the lat-I terbeing held in adjusted position by the collars 79 and the set screws 80. The outer end of the boom in this instance may be adjusted in any suitable manner, for' instance, by making the rod in adjustable sec-- tions vor by pivotally connecting the opposite legs ofthe-.boom bseparate bars and bridgin -across these ars a shaft to'hold the 8.- As its upper end braced by diagonal struts 81 connected to a collar 82 at its upper end,

-which collar surrounds the shaft and is adj'ustably sedured thereto by meansof a set screw 83, the lowerendof the struts being secured to the braces 10 as shown. Similar struts' 84 are secured to the platform 1 and to a collar-8 5 whichisloosely-mounted upon .the ost -so as to permit said post vto move vertically Atherein or to rotate. l

In the operation of the device 'the vehicle is propelled in any suitable manne-r so as to'force the scoop blade ou the bucket into a pile of material. When the bucket has been forced far enough into 4the material ico :and properly loaded thevehicle is stopped and the winch operated so as to wind upv l the c'able 9 and thereby draw the bucket over the tracks on the boom. When the rollers strike the' abutment i6 on the pivoted track section the bucket will be tilt-edto the posi-v tion shown in dotted lines Ain Fig. 4,' thereby discharging its contents. Uponthe vinitial movement of the bucket' it will be seen that the'- yoke member 63 is released by the bar 61 and the lower supporting legs will then drop by gravity into enga-gement with the li ground at the same time carrying their 'shoulders 64 beneath the brackets .65, thus taking the strain of the boom off of the pivotal point. and greatlyv aidingin the support of the weighted bucket. When the bucket is returned to normal position the f 1 yokesupporting member will be trlpped and thrown to .inoperative position`as shown in A* full lines in Figs. 1v and 3. When 1t isde- Sire'dtoincline the bottom of the bucket upon being elevated on\the boom, the crank ends 53 are raised to the positionshown by dotted lines in Fig. 6 and' the switch 58 depressed so that the rollers-54 will-travel in the track 'section 37. When these rollers strike the inclined portion of the track they,

withthe rollers 50 being in a parallel planev with the bottom of the bucket, will throw .the bottom of. the bucket to an incline parallel with the inclined track thus any soft stuit' within the bucket will be thrown to o of material may thereby be loaded and elevated. After loading the bucket and partially elevating 'the same upon the boom if f it is desired to turn the boom 'so as to dump the contents ofthe bucket `into a cart or wagon at one side of the vehicle, the. cam lever vis depressed to the position shown in Fig. 3 which action elevates the forward end of the lever 21 and raises .the post Y5 and the entire boom mechanism from the ground. .By then rotating the hand wheel 32 in the proper direction the boom may be turned as is indicated in dotted lines in Fig. 2. rllhe elevation of the bucket on the boom may be then continued until'it is brought into dumprangement, Vthe Ablocks being connected to` A the outer end of the lboom/and to the post 5 as shown, and the free end of the'rope being connected to a cleat 86 carried by the lower end of the post.

In the modification shown in Fig. 14C, the tilting track sections are locked imposi- 45'tion to receive the bucket upon its upward movement over the boom by means ofspring bolts-87 whichV engage the -cleats 88 carried by thev sections 34: These spring bolts are released from thel cleats. by means of the 50 link 89 having depending ends 90 which lie in the lpath of the rollers 50. Whenl the bucket is advanced on .the boom to the posi# tion where it would ordinarily engage thef abutment 46, the rollers engagathe .depending ends-90-on the links 89".-A and .release the bolts 87 from the cleats 88, thus'permitting the track gsection 45 to tilt andthe.V

bucket to dump. its contents. Upon the iet-v rograde movement of the bucket,the track will bareturuied to normal position and the' spring bolts will snap upon the Vcleats 88,- hus locking"l the. track, sectionlsil in alinementwith the 'sections '34. lWhat is claimed as new isv: v

1. .in combination, a portable truck,la boom the back of the same and a greater quantity'A ing position as shown in Fig. 4:. 'By adjust- 4 and for tilting said track section.

roeaosa 'pivoted thereto, means for locking the boom in alinement with the truck, means carried by the truck for \raising the boom bodily means actuated by the raising means for releasing the locking means and a bucket mounted to travel over the boom.

v2. In combination, a portable truck, a boom pivoted thereto, a lever pivoted to the truck for locking the boom in alinement with the truck, means carried by the truck for raising the boom bodily, said .means actuating the leverto release the samefrom locking engagement with the boom, means for turning the boom and a bucket mounted to travel over the boom.

- 3. In combination, a portable truck, a-

boom pivoted thereto, a lever pivoted to the truck for. locking the boom in alinement with the truck, 'means carried b the truck for raising the boom bodily, sai

means actuating the lever to release the same from lockingl engagement with the boom, a'drum shaft carried' by the truck, {lexible elements' connected'. to. the Idrum shaft and to the boom, means for rotating the drum shaft and a bucket mounted to `travel over the boom..y

et'. in combination, a portable truck, brackets carried thereby, a boom, a pivotal member carried by the boom and slidably and rotatably arranged in the brackets, means for supporting they boom, means for raising and lowering the boom bodily, means controlled by the raising and lowering means for locking the boom in alining posi` tion with ,the truck and a bucket mounted to travel overthe boom.

5. ln a loading and unloading machine, a pivoted boo-m, tracks carried thereby including a tiltable track section, a bucket, rollers carried by one end of the bucket for engaging the tracks, rollers adjustably carried by the oppositefendof the" bucket for engaging the tracks, and means for moving the bucket over the tracks and for tilting said track section. f

a portable-truck, a boompivoted thereto,

tracks carried bysaid boom including a tilt-` di able .track section, a bucket, stationary 'means ,6. lnv a loading and unloading machine,`

llO

carried -liya the gbucket for engaging the tracks, a pivoted roller mounting device carvried by t ef'fbucketgengaging the tracks, and

means formovihg saidbu'cket over the boom .7. ln a loading and unloading a'portable truck, an inclined boom carried thereby, tracks. carried by thev boom, a

bucket', trackfengaging members carried by the bucket, means for raisingand lowering .the bucket on the boom, auxiliary track sections, and switches qfor throwing jthe track' 'engaging member-sento the auxiliary track sections when the .bucket is returned to its lowest pos1tiop.

machine,

8. In combination, a boom, a bucket adapted to travel over said boom, and means carried by the boom and automatically -controlled by the bucket for supporting the boom when the bucket is elevated thereon.

9. In combination, an inclined boom, a supporting member pivoted to the boom and adapted to drop by gravity and to engage the ground for supporting the boom, coactin'g means with the supporting member and boom for removing the strain upon the pivot -ber to inoperative position.

point of the member, u bucket operating over the boom,4 and means carried by'tljie bucket for throwing the supporting mem- 15 In testimony whereof I ailx my signature in presence oftwo Witnesses.

MICHAEL IGOGARTY.'

Witnesses: l

E. EDMoNDsToN, Jr., E. L. MUELLER. 

